There are three levels i based my faith on:
A. Creation point to a Creator. It is like overwhelming circumstantial evidences, millions of it.
B. The Scriptures which is backed up by history, archaeology, science and prophecies that have been fulfilled
C. Personal relationship with a living Saviour and God eg answered prayers etc
I know people from different religions and although some have certain experiences with their gods , however, that experiences is very very sporadic. Eg a chinese in Singapore may go to temple to pray for wealth and v soon, he strike lottery. He said that the god at that temple is good. Later, he went again many times but did not get such result. For other religions, i rarely hear them share any personal experiences. But interesting is the fact that most believe in some form of god.
Other religions have manuscripts but which isnt backed up by history, archaeology, science or prophecy. Far from it. Their manuscripts contain anecdotes, karma and being a good person.
However they looked at the creation and order in the ecosystem and universe, and they do believe there is a creator or gods, even though they don't have the proof. They cannot deny the overwhelming evidences. Why is atheists the very very few minority on earth, maybe 2-3%?
If you really think there is no god, why do u join this forum to discuss it? Wouldn't you brush off this Christian-god stuff as total rubbish fantasy? For example, people who have no interests in soccer won't even bother if the world cup is on. I have no interests to tour the North or South Poles, so don't even bother talking to me about it.